Module Name: src
Committed By: thorpej
Date: Mon Mar 6 12:25:06 UTC 2023
Modified Files:
src/share/man/man9: portfeatures.9
Log Message:
Document __HAVE_UCAS_FULL and __HAVE_UCAS_MP.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/share/man/man9/portfeatures.9
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man9/portfeatures.9
diff -u src/share/man/man9/portfeatures.9:1.2 src/share/man/man9/portfeatures.9:1.3
--- src/share/man/man9/portfeatures.9:1.2 Mon Mar 6 01:03:45 2023
+++ src/share/man/man9/portfeatures.9 Mon Mar 6 12:25:06 2023
@@ -1,4 +1,4 @@
-.\" $NetBSD: portfeatures.9,v 1.2 2023/03/06 01:03:45 wiz Exp $
+.\" $NetBSD: portfeatures.9,v 1.3 2023/03/06 12:25:06 thorpej Exp $
.\"
.\" Copyright (c) The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -75,4 +75,18 @@ interlock.
.\" ---------
.It Dv __HAVE_SPIN_MUTEX_STUBS Pq Xr mutex 9
The port provides fast path enter and exit stubs for spin mutexes.
+.
+.\" ---------
+.It Dv __HAVE_UCAS_FULL Pq Xr ucas 9
+The port provides a full implementation of the low-level primitives
+required for atomic compare-and-swap operations to user-space addresses.
+.
+.\" ---------
+.It Dv __HAVE_UCAS_MP Pq Xr ucas 9
+The port does not provide a full implementation of the low-level
+primitives required for atomic compare-and-swap operations to user-space
+addresses, but does provide an implementation of those primitives that
+can be used if
+.Pq and only if
+the system has more than one processor.
.El
